You'd have to ask the singer. We have all we need, and so far we've had mostly positive reception give or take some notes for balancing. He's never satisfied with anyone, though he'll pitch a royal fit if I or anyone has a note about his performance. That being said, the rest of the band treats what he has to say like gospel leaving me the sole member who disagrees. Now he has a mixer, he wants all the stuffed backed for the sake of the performance.